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KMID : 1001920110500040388
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Journal of Korean Neurosurgical Society
2011 Volume.50 No. 4 p.388 ~ p.391
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Serial Magnetic Resonance Images of a Right Middle Cerebral Artery Infarction : Persistent Hyperintensity on Diffusion-Weighted MRI Over 8 Months
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Son Seung-Nam
Choi Dae-Seob
Choi Nack-Cheon
Lim Byeong-Hoon
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Abstract
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A lesion that is hyperintense on diffusion-weighted imaging (DWI) and hypointense on the apparent diffusion coefficient (ADC) map is a characteristic magnetic resonance imaging (MRI) finding in acute ischemic infarction. In some cases, however, these findings can persist for a few months after infarct onset. It is thought that these finding reflect the different evolution speeds of the infarcted tissue. We report a patient with a right middle cerebral artery territory infarction with persistent hyperintensity on DWI and hypointensity on the ADC map for over 8 months. To our knowledge, this is the most persistent case of hyperintensity lesion on DWI and the serial MRI images of this patient provide important information on the evolution of infarcted tissue.
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KEYWORD
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Apparent diffusion coefficient, Cerebral infarction, Diffusion-weighted imaging, Perfusion-weighted MRI
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